Answer:
A: 4 to 7
Explanation:
From the graph, you should be able to see that you can connect points (2, 3), (6, 9) and (8, 12) to form a straight line. (4, 7) is the only point that does not lie on this straight line, therefore its ratio is not equivalent to the rest.
Also, reducing 8/12 = 4/6 = 2/3
and reducing 6/9 = 2/3
As 6/9 = 8/12 = 2/3 all these 3 points have equivalent ratios